Delete an unwanted email address

[Bryan]

I am running Windows 11 Pro with Office 2021. I have sent an email to an address. if I begin to type the recipient's name it automatically loads the full address. The recipient's name that appears is mis-spelt and now I want to remove that recipient. However, I cannot find a way to do this. The recipient does not appear in my list of email contacts, so it is somewhere stored in the Windows system.